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Pateted Apr. I8, |899. A. M.` BATES.

. .ii'l's 59, 0R OTHER FLExlBLE REcEPTAcL'E (Appucaein-n med .rm 9, 1899.)

(No Model.)

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llNrrnD STATES Pnfrnngrrnicnn ADELMER M. BATES, OF CHICAGO, ILLINOIS.

- SACK, BAG, R OTHER FLExiBLE RECEPTACLE.

SPECIFICATION forming part of Letters Patent No. 623,199, dated April 18, 1899. Application filed January 9, 1899. SerialNo. 701,541. (No model.)

To a/ZZ whom t may concern.-

Be it known that I, ADELMER M. BATES, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Sacks, Bags, or other Flexible Receptacles, of which the following is a full, clear, and exact specification.

My invention relates to sacks, bags, and other flexible receptacles for holding granular or powdered substances, such as salt, sugar, flour, meal, tea, coffee, ore, grain, dac. and it has forits primary object to provide improved and simple means whereby the bag or receptacle may be entirely filled after the stitching, pasting, or other securing operation is entirely completed and at the same time to autom atically prevent the contents from afterward escaping through the filling-aperture, thereby enabling the sack or bag being stitched or secured entirely by machinery with a resultant saving of material, labor, and expense.

In filling a bag or sack with granular material the latter forms itself into a pyramid, and consequently if the bag be filled through a filling-tube or small aperture inserted at its center the pyramid will rise in the bag until it chokes olf the supply; but the upper corners or shoulders of the bag will not be filled without jostling or agitating the bag. Hence another object of my invention is to provide a bag or sack with a lling-aperture so located that when filled through a fillingtube the material will rise uniformly in the bag and lill all the' corners without the necessity of agitating the bag during the filling operation. 1

Another and subsidiary object of my invention is to provide the bag with a fillingaperture of such construction that the bag may be entirely stitched on all sides sufficiently to contain the material and the bag filled without turning it right side out, as

heretofore, whereby' the additional handling of the bag necessary for stitching up the end of the bag after it is turned will be avoided and an appropriate and cheap receptacle for carrying coarse material-such as granulated ore, coal, dvd-will be provided.

In carrying out my invention I provide the bag or sack at the corner with a comparatively small filling-aperture, around which are formed or located valvular folds or lips, which will open to admit the end of a filling funnel or spout, but will automatically close under the pressure of the contents when the funnel is withdrawn, and thus prevent leakage with a resistance increasing in direct ratio to the pressure of the contents thereagainst.

Vith these ends in view my invention consists in certain features of novelty in the construction, combination, and arrangement of parts by which the said objects and certain other objects hereinafter appearing are attained, all as fully described with reference to the accompanying drawings, and more particularly pointed out in the claims.

In the said drawings, Figure lis a side View of a bag or sack embodying my invention. Fig. 2 is a section thereof on the line 2 2, Fig. l. Fig. 3 is a vertical section showing the manner of filling the bag. Fig. 4 is a perspective view of a portion of the bag, looking down thereinto. Fig. is a view similar to Fig. l illustrating a slight modification, and Fig. 6 is a view similar to Fig. l illustrating a still further modification.

The bag or sack may of course be composed of'any of the materials from which such articles are usually made; but when composed of cotton cloth or other fabric it is desirable in some instances that the securing of the edges be eected by stitching. Heretofore it has been customary to make sacks of a piece of folded cloth having a line of sewing-machine stitching extending across one end and down one side, thus forming a bag open at one end, the lower end being 'usually closed by hand-stitching after the bag is filled. In

the accompanying drawings I have shown as Before this line of stitching 3 is run the corner of the bag adjacent to its folded side is turned over, as clearly shown in Fig. l, at substantially right angles to its edges, and the line of stitching 3 is started from the diagonal side of its turned-down corner and is car- IOO ried across four thicknesses of material thus formed straight to the opposite side of the bag and then turned down t-heline of stitching 2. By thus folding over the corner of the bag it will be seen that I form a tubular neck or valvular fold 4, surrounding a fi-lling-apertu re that is left in the corner of the bag between the points 5 and If the purposes for which the bagisintended do not make it objectionable to have the raw edges of the fabric along the line of stitching on the outside of the bag, the line of stitching 2 may be continued around the lower end of the bag, as shown at 7, so as to completely close the bag on all sides with the exception of the filling-aperture between the points 5 and 6.

When the bag is to be filled, a filling tube or funnel 8 is introduced through the neck 4 means for the filling of paper and, in fact, all

and the bag, preferably held in a diagonal position, as indicated in Fig. 3, so that the conical formation of the material will rise into the upper corner of the bag and completely fill it without the necessityof jostling. When the filling-funnel is withdrawn, the neck t will fold back to its original position, as shown in Fig. l, this tendency being induced by the line of stitching 3 thereacross, and thus prevent the escape of the material from the bag.

If it should be desired to turn the raw edges of the material into the bag before it is lled, then in that event the line of stitching 7 will be deferred until thebag is turned Vinside out, bringing the tubular neck 4 inside the bag, as shown in Fig. et. When the bag thus turned is to be filled, the fillingfunnel isinserted through an aperture at the corner and the tube 4, as before explained, and when the tube is withdrawn the tubular neck 4 will rest against one side of the bag, as shown in Fig. 4, and prevent the material from escaping, and the neck 4 in being thus doubled on itself, as it were, and also turned wrong side out, constitutes a very efficient closure for preventing the escape of very fine granules and the pressure of the material against the neck will seal it all the tighter.

In applying my inve'ntion to large sacks, where the material wasted between the line of stitching 3 and the upper end of the bag would be a desideratum, I employ the construction illustrated in Fig. 5, which consists in turning the corner of the bag in such a manner that the lower edge of the fold will be at an acute angle to the left-hand side of the bag, and I then start the stitching 3 at about the same point on the corner, but carry it upwardly on a curved line across the folded corner, so as to bring the closure to the edges of the material at the end, thus forming a tubular neck or valvular fold 4, which isv flaring at one end.

In the form shown in Fig. 6 the valvular fold is produced where the two edges of the material are brought together, or, in other `words, at the corner of the bag, where the lines of stitching 2 3 meet, and the valvular fold instead of being in the form of a tube is in the form of two aps or lips 4b etc, constituted by the two corners of the-folded fabric. In accomplishing this the line of stitching at the end of the bag (indicated at 3a) is run from the folded side of the bag entirely across the end and across one corner of the [iaps 4. 4, and then the stitching is run back down the other corner of the aps and carried down the side of the bag, as shown at 2a, thus leaving a filling-aperture between the points 5a 6, which is surrounded or guarded by the two valvular lips or folds constituted by the said flaps, the folds or lips being always held against one side of the bag by reason of the stitching being carried through them and the two other thicknesses of material.

My invention also forms an appropriate other bags or sacks in advance of sale, inasmuch as the sack may be appropriately secured all around by the manufacturer and shipped to the grocer and other dealers ready ito be filled, thus forming a tight package when filled and relieving the grocer or other user of the necessity of securing the edges of the end, which is an operation difficult to accomplish properly after the contents have been inserted, owing to the necessity of doing L it by hand.

Having thus described my invention, what I claim as new therein, and desire to securek by Letters Patent, is-

l. Asa new and useful article of manufacturea bag or flexible receptacle havinga filling-aperture located at the corner thereof and a valvular fold arranged at and guarding said aperture and forming a closure for preventing the escape of material, substantially as set forth.

2. As a new and useful article of manufacture a bag or sack having a lling-aperture located at one corner thereof and a exible neck surrounding said aperture in said corner and having a closure or valve for said aperture, substantially as set forth.

3. As a new and useful article of manufacture a bag or sack having a filling-aperture located at one corner thereof and a flexible neck or tubular extension arranged around said aperture in said corner and projecting into the bag or sack and forming a closure or valve for said aperture, substantially as set forth. Y

4. As a new and useful article of manufacture a bag or sack having onecorner turned down upon itself and being secured to the IOO IIO

side of the bag, the sides of the bag at a'point between the corners of said turned-down corner being left open to form a filling-aperture and said turned-down corner constituting a valvular fold for closing said aperture, substantially as set forth.

5. Asanew and useful article of manufacture a bagorsack having its corner folded upon itselfl and a line of stitching which oloses one side of the bagbeingearred'aeross to the doubled edge of the material folded 1o said corner, the bag at a point between said down and secured to the side of the bag, said line of stitching and the corner of said fold corner being left open for a short distance to being leftunseeured to form a llng-aperform a filling-aperture, substantially as set 5 ture, substantially as set forth. forth.

6. As a new and useful article of manufae- A. M. BATES. ture a bag or sack com posed of a piece of ma- Witnesses: terial folded upon itself and secured around EDNA B. JOHNSON,

its free edges and having one corner adjacent F. A. HOPKINS. 

